<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14"></script>

<script>
  const vm = new Vue({
    data() {
      return {
        name: 'cp'
      }
    },
    methods: {
      getName() {
        this.name = 'pink'
      }
    }
  })
  console.log(vm)
  // 1. 隐性的this   fn()   obj.getName()  new Person() 
  // 2. 显性的this   call/apply/bind
</script>